Nobody trips over mountains. It is the small pebble that causes you to stumble. Pass all the pebbles in your path and you will find you have crossed the mountain. The mind does not create what it perceives, anymore than the eye creates the rose.

Obedience alone gives the right to command.

The proof of a high education is the ability to speak about complex matters as simply as possible.

The secret of the world is the tie between person and event. Person makes event and event person.

Democracy is morose, and runs to anarchy, but in the state, and in the schools, it is indispensable to resist the consolidation ofall men into a few men.

We are impressed and even daunted by the immense Universe to be explored. "What we know is a point to what we do not know."

Nature has made up her mind that what cannot defend itself shall not be defended.